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Finding the Fourth Proportional to 7,993.70, 11,992 and 2,446.94

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Solution

The fourth proportional to 7,993.70, 11,992 and 2,446.94 is: 3,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.70 : 11,992 = 2,446.94 : x
  2. Step 2: Convert to fraction form
    7,993.70/11,992 = 2,446.94/x
  3. Step 3: Cross multiply
    7,993.70x = 11,992 × 2,446.94
  4. Step 4: Simplify right side
    7,993.70x = 29,343,704.48
  5. Step 5: Solve for x
    x = 29,343,704.48/7,993.70
  6. Step 6: Final answer
    x = 3,670.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.